Type-writing machine.



No, 891,453. PATENTED JUNE 2s, 190s E. E.BARNEY. TYPE WRITING MACHINE.

APPLICATION FILED SEPT. 6. 1905 2 SHEETSSHEET 1.

FIGI

\/\/ITNE%SES =:5 INVENTEJRT HIS/\TTURNEY WITNESSES:

E. B." BARNEY.

TYPE WRITING MACHINE.

APPLICATION rum) SPT.6,1905.

2 8HEETS'SHEET 2.

INVENTDR':

H15 'TTEIRNEYI s'rrns PAtrENT OFFICE. 1 j

EDWIN E. BARNEY, orsrnAcusnnnw YORK, issreuoa TO'THEMYONARCH TYPEWRITEB COMPANY, OF SYRACUSE, NEW YORK, A CORPQRATION OF NEW YORK.

' PE-WRITIN G MACHINE.

Specification of Letters Patenti Patented June 23, 1908.

Application filed September'G, 1906. Serial No. 277,208.

To all whom it may concern:

Be it known that-I, EDWIN Syracuse, in the county of Onondaga and State of New York, have invented. certain new and useful Improvements in Type-Writing Machines, of .Which the following is a specification.

My invention relates to carriage impelling' means for typewriting machines and has for its main object to provide an improved de-' vice of the character specified.

In carrying out my invention I preferably employ a plurality of spring drums, each comprising a caseor boX and a main spring coiled within said case, the several main springs being connected one with another,

' so that with a tension equal to that of only one of the springs I am enabled to secure an extension or stretching equal to the stretching of one spring multiplied by the total number of springs employed.

In the accompanying drawings, Figure 1 is a fragmentary side elevation of a Monarch typewriting machine to which my invention is shown as applied. Fig. 2 is a front elevation of one of the spring drums. Fig. 3 is a front elevation of the other spring drum, part of the case being shown broken away. Fig. 4 is an enlarged sectional view of the carriage impelling mechanism taken on the plane passing through its axis of rotation. Figs. 5

and 6 are rear elevations of the tension adjusting devices of themain springs.

Although I have shown my invention as embodied in a Monarch typewriting machine, it is to be understood that it may be applied to other styles of writing machines. I

In the drawings, 1. is a top plate of the machine, supporting brackets 2 to which are secured top and bottom guide rails 3 and i;

E. BARNEY, citizen of the United States, and resident of 25 of still smaller diameter.

vided with lugs 16 which receive screws. 17 by which the bracket is fixedl secured to the top plate of the machine. h'e dog car rier 13 is provided with a horizontally disposed arm 18 which is connected by a; link 19 with a pivotally supported universal bar of.

the usual construction, said universal bar extending from sidetoside of themachine beneath the printing key levers and s acing levers (not 'shown) and being adapte to be actuated by said printing and spacing lovers in a known manner and thereby to cause the carriage feeding dogs 12 to cooperate with the escapement wheel 11 to permit the laten carrier and'the laten to be drawn is t ward across the mac ine'under the influence of the carriage impelling mechanism presently to be described.

The parts hereinbefore referred to generally resemble those found in the Monarch machine, and it is not thought necessary to describe them with any greater degree of par ticularity.

At its left end the bracket or support 15 is provided with a perforated boss 20-which serves as a bearing for an axle or shaft for the carriage impelling devices, said shaft being designated as a whole by the reference-numeral 21. The portion of the shaft 21 which turns within the boss 20 and which is designated by the reference 21 is succeeded, forward of the boss, by an enlarged ortion 23 followed by a reduced portion 24, t 1e portion 24 being followed. or succeeded by a portion the portion 21 the axle21 is provided with a reduced threaded portion'26 succeeded in turn by a further slightly reducedportion 27, which near its rear end is flattened on two sides, as indicated .at 28, and which terminates in a small threaded end ortion 29.

Rearwardly of Mounted upon the portion 25 at t e forward end of the axle 21 is a band wheel 30 comrising a-hub 31, spokes 32 and rim 33.

formed by the junction between the portions 25 and 24 of the axle 21 and a headed screw 34 which screws into the front end of the axle, the construction being such that the band wheel 30 turns freely on the axle but is prevented frommoving longitudinally thereof. A band or strap 35 has one end fastened to the band wheel, as indicated at 36, the other end of said band 35 being connected The rub 31 is confined between the shoulder shoulder formed by the junction of the por-' the beveled gear of the ribbon-mechanism,

which in theMonarch machine are carried at the front end of the main spring shaft or axle, have not been shown in the drawings since they are not material to the present invention. v

A cylindrical main spring case or box 39 is rovided with tabs or ears 40 which are perorated for the passage of small headed screws 41' whichare'receivedin threaded openings in the spokes -32 of the'band wheel and serve to secure the case, 39 to said band wheel.

band wheel 30 is open, the opposite end being closed. Confined within t e case 39 is a coiled main spring 42, the outerend whereof is secured by a screw 43 (Fig. 2) to the rim of the case, the inner end being secured by a screw 44 to a collar 45 integral with and protecting forwardly from a second main spring case 46. As best appears in Fig. 4, the collar portion 45' of the second case protrudes through an opening 47 in the closed end of the forward'main spring case 39, and said collar has its bearing on the portion 24 of the axle 21. It will 'be perceived that by: the 30 main sprlng 46 is prevented from moving longitudinally of'the shaft 21 by reason of the fact that'its collar portion 45 is confined be-.

tween the hub 31 and the shoulder formed by the meeting of the portions 23 and 24 of the axle. A second main spring 48 is coiled within the boxor case 46, the inner end of said spring being fastened by a screw 49 to the axle 21 and the outer end beirig fastened 40 to the rim of the case 46 by a screw 50. The

rear end of the case 46 is open and a three-' armed confining member or guard 51 maintains the said s ring in position within its case, said guard b'eing provided with ears 52 through which pass screws 53, the latter screwing into the rim of the case 46.

The tension adjusting ratchet wheel 54 fits over the threaded portion 26 of the axle 21 and is provided with an opening 57 which receives a in 58 driven into the axle, the ratchet wheel being thereby prevented from rotatin independently of the axle 21. A nut 59 is screwed on the threaded ortion 26 against the rear face of the rate et wheel which isconfined between said nut and the tions 26 and 21 of the axle. From an'inspection of Fig. 4, it will be understood that the axle 21 turns freely in its bearing in the bracket 15, but is prevented from endwise movement by the ratchet wheel 54 and the shoulder formed at the junction of the parts 23 and 21 of said shaft.

A double pawl 60 is ivoted at 61 to the 5 bracket 15 and is provided with a handle or That end 'of thecas'e: 39 which adjoins the construction illustrated in Fig. 4 the "secondfinger portion 62 by which it inay be manipue lated inthe ordinary manner to cooperate with the teeth of the ratchet wheel 54.

The usual alarm bell 63 is positioned on the portion 27 of the axle, said bell being provided with an opening 64 (Fig. 5) having parallel sides which cooperate with the flattened faces 28 of the axle to prevent rotary movement of said bell independently 'of said axle.

The bell is held in place by a nut 65 which is scrlewed on the threaded ortion 29 of the ax e. roughened so that said bell may be readily turned by hand, the rotation of the bell also causing the rotation of the axle 21.

rotated at this time, since the platen carrier 7 (with which said case 39 is connected through the arm 37, band 35 and band wheel 30) is prevented from moving in letter space direction by its escapement mechanism in a well known manner. It will be understood, therefore, that this turning of the bell 63 will wind up both of the main springs 48 and 42, the motion being divided between them. The turning member or bell 63 is rotated until the desired tension of the springs is at- In operation the bell isturned to the right,

The rim of the bel 63 is knurled or tained, the unwinding of said springs being prevented by the cooperation of the pawl 60 with the ratchet wheel 54.

If now the printing keys or space key be operated, the escapement devices will be caused to cooperate to permit the platen carrier and platen-to be drawn leftward across the machine a letter space distance at a time under the influence of the main springs 42 and 48. These springs being connected in series will theoretically be wound up and unwound to ether and the tensions of the two springs wi l at all times be e ual. It is found in practice, however, that t 1e friction in the bearing of the main spring case 46 must be overcome before the case 46 will turn, the result being that the rot'ative movement of the rear spring drum, by which term is comprehended the case and the main spring within said case, is periodic or jerky instead of continuous, but the periodicity is not such as to interfere with the successful operation of the mechanism.

It will be understood that I providea con struction of carriage impelling mechanism which, with a tension equal to that of only one main spring, will enable the platen carrier and platen to be drawn back to begin a main springs and by connecting them in series, either in the manner shown or in a manner. equivalent thereto, a ,travel of the carriage may be had several times greater (the distance depending upon the number of springs employed) than 15 available when only one spring is employed.

My invention is particularly adapted foruse in machines in which long platens and Wide platen earners are used, slnce in such machines the travel of the carriage is con-- siderably greater than in ordinary machines. When my invention is a plied to such wide carriage" machines, the'p aten may be fed a letter space distance at a time throughout its length under a mainspring tension which is not erceptibly greater than that employed if, a machine having a platen of the ordinary length. I do not, however, desire to be understood as limiting thense of my invention to machines having .platens longer than ordinary as said inventlon may be advantageousliy used with any length of platen.

Various 0 anges in the construction of the parts and in themanner of connecting and arrangin them may be made without departing irom the spirit and scope of my -1nvent1on.

What I claim as new and.desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a carriage, a band wheel connected with said carriage by a band or strap, an

. axle on which said band wheel is ada tedto turn, a casing or drum attached to said band wheel, asecondcasing or drum having a hub portion pro'ecting through an opening. in the first name casing, a coiled spring within saidfirst named casing and connected at. its outer end thereto and at its innerend to said hub,and a second coiled spring Within the second named casin and connected at,its outer end thereto an at its inner end to said axle.

.2. In a typewriting machine, the combina-- tion of a carriage, a band wheel connected with said carria e by a band-or strap, 'an axle on which sald band wheel is ada ted to turn, a casing ordrum attached to said band Wheel, asecond casing or' drum having a hub' ortion projecting through an opening in the i irst named casing, a coiled spring within said first named casing and connected at its outer end thereto and at its inner end to said hub, asecond coiled spring Within the second named casing and connected at its outerend thereto and at its inner end to said axle, a ratchet and pawl mechanism 006 erative' with said axle, and a bell alarm fixe to said axle and serving as a finger piece or knob for turning it. k 3. In a typewriting machine, the combination'of a carriage, a band wheel connected withv said. carriage by a band or strap, an axle supported on the frame of the machine and on which said band wheel rotates,-a pair of casings or drums each containing a coded spring and connected in series with each other, each of said casings or drums being open at one side or end and closed'at the other, the closed ends of. said drums facing each other, and one of said drums being detachably connected withsaid band wheel which serves as a guard for the s ring within said drum,-and a confining-mem er or guard for the other of said drums.

Signed at Syracuse, in the county of Onondaga, and State of New York this-28th day of August A. D. 1905.

' EDWIN E. BARNEY. Witnesses:

JOHN S. MITCHELL, G. A. AUMENT. 

